TV Antenna for Smart TV,Long Range Reception HD Antenna for All TVs,Strong Magnetic Base Indoor/Outdoor TV Antenna,Powerful Amplifier Signal Booster,4K 1080P Channels-16.4ft Long Cables

NOTE: if signals can't be received when using the amplifier, adjust the amplifierto the low gain gear and try again. Amplifier may cause self-oscillationin some occasions(ie.your house is close to broadcast tower),whichmay interfere with signal reception. Parameters Frequency range: VHF 174-230Mhz;UHF 470-862Mhz VSWR:S2.0 Impedance:750 Gain: 10dBi(Short distance) 25dBi(Long distance)Power supply : USB port(5V/500mA) Polarization : Horizontal / Vertical